Sewing-machine feeding and ruffling mechanism.



L. ON DEIIIJ'ONK.

SEWING MACHINE FEEDING AND BUFFLING MECHANISM.

APPLICATION FILED NOV. 13, I903.

Patented Oct. 12,1915.

5 5I1EETS-SHEET I WITNESSES L. ONDERDONK. I SEWING MACHINE FEEDING AND RUFFLING MECHANISM. h

APPLICATION FILED Nov.'18. I903.

Patented Oct. 12, 1915.

V 5 SHEETSf-SHEET 2.

WITNESSES L. ONDERDONK. SEWiNG MACHINE FEEDING AND RUFFLING MECHANISM.

'APPLICATION FILED NOV. 18. I903.

Patented Oct. 12, 1915.

5 SHEETS-SHECT 3 WJTNESSES L. ONDE RDONK.

SEWING MACHINE FEEDING AND RUFFLING MECHANISM.

' APPLICATION FILED HOV. I8. 1903'.

1,156,545. Patented 0011.12, 1915.

- I 5 SHEETS-SHEET 4.

I I WITNESSE H a v VENTOR APPLICATION FILED NOV. I8. 1903*.

Patented 001. 12, 1915.

5 SHEETS-SHEET 5.

WITNESSES UNITED STATEES PAtrENT OFFICE.

LANSING ONIDERDONK; OF NEW YORK, N. Y., ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE FEEDING AND RUFFLING MECHANISM.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Application filed November 18, 1903. Serial No. 181,660.

To all whom it may concern:

Be it known that I, Lims nc ONDERnoNK, a .citizen of the United States, residing at New York city, in the county of New York,

'State of New York, have invented certain new and useful Improvements in Sewing- Machine Feeding and Rufliing Mechanism, of which the following is adescription, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon.

My invention relates. to improvements insewing machines and particularly to those of the blind stitch type, such as illustrated for example in my application for Letters Patent, filed Dec. 31, 1901, Serial No. 87,959.

application; a different arrangement and location thereof, a different character of feeding dog, a means of adjustment to vary the throw with respect to the lower feed dogs, so as to gather or full in a portion of the goods. In other respects the present invention sets out more elaborately various details of construction not heretofore set up and claimed in said other applications.

' At the outset I would state that the main features of the resent machine are fully set forth in the a ove application Serial No. 87 ,959; the looper, movement in application Serial No. 81,765, filed Nov. 9, 1901; patented December 7th, 1908, No. 926,891 the work plate operating mechanism in application 87,958, filed Dec. 31. 1901; patented December 31st, 1901, No. 745,736 the upper feed substantially as illustrated in Figure 8 of the present case, in my above mentioned Patent No. 990,160, dated April 18th, 1911,

- and the main or lower feeding mechanism in my application filed'July 31, 1902, Serial No. 117,878, patented October 22d, 1912, No. 1,042,258, r

My invention consists in the parts and arrangements hereinafterdescribed, and set forth in the claims.

The invention is illustrated in the aecot panying drawings, in which Fig. 1 is a front elevation of a blind,

stitch sewing machine embodying my invention in its p eferred form; Fig. 2 is a front perspective thereof, the standard and base of the machine being removed; Fig. 3 is a top plan view of the work support and top feed mechanism, the gooseneck, needle and looper mechanisms and presser foot being removed; Fig. 4: is a detail front view of the left hand-portion of Fig. 1; Fig. 5 is a detail perspective view of the supplemental feeding orv rufiling mechanism, and a portion of the maln feeding meehamsm; Fig, 5 is a detail View showing the connections between the operating shaft and the rocking frame which carries the top feedingmechanism; Fig. =5 is a detail in perspective showing the locking latch for-the upper feed dog. Fig. 6 isan end view of Fig. 2, parts being broken away; Fig. 7 is a rear View of the top feed or rufiiing mechanism; Fig. 8 is a' rear perspectiveview of the main and sup plemental feeding mechanisms, the latter being applied to the front instead of to. the rear of the machine and a somewhat different supporting framework being used this being a modified form ofthe invention. Fig.

9 is a detail perspective of another type of supplemental feeding or rufiling device and adjustment therefor.

In-these drawings, A is the standard of a I blind stitch sewing machine, B the overhanging arm or gooseneck, and ,C the work supporting, plate herein shown as a cylindrical casing inclosing the lower or main feeding mechanism.

D is the throat plate having openings for the passage of the two feed, ..dogs 1, the openings being located uupon opposite sides of the rib or projection E over Which the goods'to be stitched are-crimped.

The needle 2 reciprocatesin a curved path transversely to the'hne of feed and is operated frornthe driving shaft in the man;

ner .set forth inmy application 87,959 through the rocking arm 8 and pitman 6011 nection 4 to the driving shaft 5'. The looper L secured in a collar or clamp 15 on the lower end of therod 11 which rod has a lower part 13 screwed into a socket in the upper part 12, which upper part 12 is pivo'ted between the forks of a pin or bolt 10 pivoted to a crank 9, on the rock shaft 6 'journale'd in the bearing barrel 7 on the head of the machine. This rock shaft has at its opposite end a crank having pitman and eccentric connection to the driving shaft. The rod 13 through the action of the cranks on the rock shaft 6, is raised and lowered to impart to the looper a rise and fall to enable it to pass from one side the line of scam to the other, over the apex or ridge on the throat plate and to enable it to escape obstructions, such as seams or extra thicknesses of goods. To impart, however, this sidewise movement from one side the line of scam to the other, it is, necessary to freely pivot or fulcrum the looper supporting rod, in order that as it rises and falls and the cranks pass from one side the center to the other, a tilting movement may be imparted and to this end. I have provided the arm 16 enlarged at its outer end and formed with a recess through which the rod 13 passes, this recess'being formed to receive and hold a ball bearing 17. In the rise and fall there fore, of said 'looper supporting rod, it slides through the ball 17 and at the same time os cillates said ball in its support, whereby the looper has the four motions above referred to. It is also necessary to impart to said looper a forward andbackward movement in thealircction of its length to enable it to take and lea re the needle loop and also carry its own loop into position to be engaged by the needle and to this end the arm 16 at its inner end is fixed upon an upright rock 'shaft 18 journaled in bearing lugs 19 and 20 on the machine frame. The upper end of this rock shaft 18 has clamped about it one end of a rod or bar 21. which at its opposite end has a ball and pitman connection 22, 23, with an eccentric on the main shaft. As the snaft revolves therefore, the vertical rock shaft is oscillated and the bearing through which the looper rod passes and in which it fulcrumed, swings from front to rear of the machine, thusimparting to the lropcr, a forward and backward movement in the direction of its length.

Referring now to the feeding mechanism shown in Fig. 8, n represents the feed shaftwhich imparts the forward and backward mowmcnts "to thc feed dogs while shaft u" gives the vertical n'iorem'cnts thereto lhrough the link 54 fixed to its outer end and pirotally attached to the bar lh'c numeral :ifirc 'ircscnts two feed dogs having teeth in their lower forward edges,

i these being fixedly sleeved at the front ofv the rim-thine to ashaft 50 extending longitudinally of the work support, and journaled in the upper ends of arms 60,- 60, fixed at their lower ends to the rock shaft 61 join naled in bearings in a lug 62 secured to the work support. This rock shaft is provided with an upwardly and outwardly extending arm 63 to which, near its upper end is adjustably fitted in the slot a bolt 6 upon which is pivoted one end of a link 65 which at its opposite end is pivoted on a bolt 66 secured to the upper end of the arm 67 which latter'is at its lower end clamped upon the shaft M. It will be seen, therefore, that as the shaft u oscillates the shaft 61 rocks and swings the arms'60 bodily, thus' moving the feed dogs 55, bodily back and forth. Near its inner end the shaft 59 has fixed upon it, a downwardly projecting arm 68, which at its lower end is provided 1 with a stud 69, upon which is pivoted one end of a curved link 70, which, at its lower end, is pivoted :on the stud. 71, secured on the lower end of the lever or crank 72, loosely sleeved on the shaft M. This lever or crank 72 is normally pinned to the crank 73 fixed at its upper end to the shaft to. This pinning together of the two cranks is accomplished by means of a spring'catch 74: pivoted to the crank 73 and having a latch engaging the slot 7 5 in the crank 72. \Vhen the cranks 72 'and 73 are pinned together and move as one, the oscillation of the shaft u transmits an oscillatory movement to the shaft 59, thus swinging the for ward ends of the feed dogs up and down. no \Vhen the catch 74 is withdrawn from en gagement with the crank 72, a leaf spring 750 secured in the split end of the shaft 59 and hearing at its lower end between'the projections 77 on the arm 68 swings the lower end of saidarm forward and thus antomatically raises the forward ends of the dogs. Means are provided for automatically releasing the top feed mechanism when the work plate is lowered for the insertion or removal of the work and to this end the spring catch 7-? hasits lower end projecting downwardly into position to be engaged by a projection 770 on the machine standard, whereby when the work support is lowered, 5 the catch will he tripped and release the crank 72 from engagement with the c ank 73, holding the catch in its engaged position until the work support returns to elevated position and the shaft it begins to oscillate when the cranks are again united,

in Fig. an arrangement for simple ruffling is shown in which a ruiiling blade 10] is attached to the end of a .rod or shaft 59 means of the link 65 baring a bolt connection with the curved slot 100 in the arm (it By this arrangement, it Will be noticed that the adjustmentlof the arm up and down in the slot 100 varies the amount of throw in the rutlier blade 101.

The preferred form of top feed mechanism which I use is illustrated in Figs. 1 to 7 of the drawings and upon this I propose to base specific claims in the present application. In these figures 59 corresponds to the shaft 59, this having clamped to its outer end the plate 102which extends beneath the head ofthe machine and has rcmovably cared to it a top feed dog or rntliing memher 103 which projects forwardlfi toward the needle of the machine. I

61 represents a shaft tmrrespondiug. in Fig. 8 to the shaft (31. this being journalcd in bearingsaipon the brackets NH secured to the bed plate of the machine and being con-- nected with the shaft by thc upright arms 30' 30, thearm (30 having therein a curved slot to receive the adjustable bolt (34 upon which is pivoted the link lSMwhich at its other end is pivoted upon the stud or; secured to the arm (BL-which at its lower end is clamped to the shaft 1/. lty this series of connections the feed dog lot; is moved back and forth as the shaft. oscillates. in order to give the rise and fall to the feed dog supporting plate 102 and therefore to the feed dog 103, there is sleeved on the, shaft 55) the link 105 to'which is pivoted a downwardly projecting link 1013 which at its iower end is pivoted by llltlllH of the stud 107 to the arm 1.08 which is loosely sleeved on the rock shafts. This arm 108 is slotted as shown at 75 toreceive a catch 74 pivoted to the crank 73 clamped on the shaft. 1/. this catch 74- being normally spring pressed to engage the slotin the arm 10H by means lhe operation of the of'the spring 109. parts is sid stanti-alh' the same as described. in connection with Fig. for when the catch 74- is in normal position. it engages the slot 75 in the arn1 't,0tand pins the. crank 73 and arm 10R together, thus transmitting movement through the link 106 to the crank or link 105. thus raising and lowering the top feed dog supporting frame. as the shaft 11 is oscillatedj spring T51) is secured at one end in a slot in the end of the shaft 59 and at the otherend between extensions lit) on the link 105 and its tension is adjusted. by means of the upper and under blorks Ill. and screw 112 and this spring permits the automatic rising of the top feed frame when the work support is lowered and the catch 74' engages the projection Tit) to throw the catch T-t' out of engagement with the arm 10s.

Carried by the top feed frame and at tached to a projection 113 thereon is a part shown at 114 which projects forwardly. to a 'on the top of the feed dog projects under the forward end of the member 114. and that the main portion of said feed is in front of said member. As the fabric passes from under-said top feed, the loosethread ends or ravelings are liable to project out between the threads of the stitches unless they are turned down fiat upon the fabric. The llltllh her 114 has the forward end thereof curved so that as said member is moved over the fabric; the forward end thereof will turn down any ravelings or threads projecting from the raw edge of the material. stitches are then laid over saidtlirned down threads. This part Ill is independent of the top feed dog 101), so that the looper thread loops and the needle thread loops may be drawn down between these parts to the underside of the part ll-i', thus covering the ravclings held down by said part 114-. The opening 115 near the end oft-he. part 114 is for the purpose of relieving the interlocked loops of the stitching threads from pressure at the time said loops aie drawn on to set the stitch. "lhis top feed dog 103 is provided with a tongue 111' over which the stitch is formed. 'lhis. however, is not. absolutely essential when the part lll is used. The underside of the part 114 at the point nearest the path of the needle is made so as not to press heavily upon the material sewn and therefore will not interfere with the drawing of the stitch taut.

it will be seen that by adjusting the top The fccd that a movement thereof in advance of i the lower fecd may be given to gather or 'full in the goods. which is desirable on certain classes of blind stitch work.

It will be noted that my top feeding mechanism may be either a rutiling blade or a serrated feed dog. and that either of these members may be moved in unison with the lower feeding mechanism or maybe given a different moven'ient so as to full-orgather the material being operated upon. I have referred to this rullling .blade and feed (log throughout the claims as a feeding device, and it will be understood that thisterm is intended to cover either of these members whether moperating with the lower feeding mechanism merely to feed the material in the usual wayjor whether cooperating-therewith to rattle or gather the material.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:.' i

1. A blind stitch sewing machine inclu ding in. combinsition e work support, a rib carried thereby for crimpin" he meterisr needle reciprocating trn'ns' ly of rib, a looper cooperating tlltf} cw. stitches, and a feeding mechanism compr' ing two feed membe-rsldcnted l mph ite sides of a horizontal plane pas ing tinthe needle at the stitchin point. means operating said feeding members and in infor. relatively adjusting the movemen',

r thereof to impart d'ifi'erential movement ,thereto.

2. A blind stitch sewing machine includ mg 1n combination, a needle, 3 looper cooperating therewith, means for crimping the material whereby said needle may enter and.

feed openings, a crimping ridge located between said feed openings, a needle reciproeating f'transversely of the line of feed, a looper cooperating with said needle, a main two part lower feed operating through said openings in the work support, and adapted to engage the fabric upon opposite sides of the crimping ridge, and :1 top feeding device'- -adapted to engage the fabric between the arts of the main feeding device.

4. A blind stitch sewing machine including in combination, a work support having feed openings, :1 crimping ridge located hetween said feed openings and'carried by the Work support, a needle reciprocatingtransversely of the line of feed, a looper coopersting therewith, a main two part lower feed operating through the openings in said Work support and adapted to engage the fabric upon opposite sides of the crimping ridge, a top feeding device adapted to en-- gage the fabric between the parts of the main feeding device, and means for adjust ing the throw of the top feeding device indcpei'nleutly of. the main feeding device, whereby a differential movement may be imported to the two said feeding mechanisms.

5. A sewing machine including in combination, stitch forming mechanism, a Work support having feed opcnin formed therein, a crimping ridge located between said openings. :1 main two'part feeding mechanism, engaging the material on opposite sides of said crimping ridge through the openings in the work support. a top feeding mechanism including a fabric engaging dcvice has in; upon h s ridge forming i be-rgwm-l man"; for upgrading the main ml 1., A sewing urn-him. including in combi- .tiwh forming mechanism. a main ling (if-Vim, a crimping ridge :he ports of the main rerli :nemanism iniring upon the rat ng top fcwiin device cri mpm g rich:

feeding mechanisms, said to having :2. tongno over which ormcd. '4'. l

forming mechanism. :1 mai eding mechanism.v a crimping l intermediate the parts of the ."--e g device, a top feeding. met-hm x upon the crimping ridge, means for operatingthe main and top feeding mechanisms and presser mernhers bearing upon the material upon opposite sides of the crim ing" and rciipernting with the parts 0 the feeding mechanism.

52%. A sewing machine including in combi' nntion, stitch forming mechanism, a msum sin including fabric enga ing devices, a crin'ipingridge located intermediate the fabric engaging devices. a top feeding feeding Eli hen.

mechanism including a iabric engaging de vice bearing upon the crunpmg ridge, means for oeerating the main and top feedin mechanisms. and adevice infroht of the top fabric engaging device, for turning and hoiding down the ravclings from the raw edge of the material being sewed.

9. A sewing machine including in combination, stitch forming mechanism, a main feeding mechanism, including fabric engaging derices, a crimpihg-ridge locatedintermediate the fabric engaging devices, a top feeding mechanism including a fabric engaging device bearing upon the crimping ridge, means for operating the main and topfeeding mechanisms, a device in front of the top fabric engaging. device for turning and holding down the ravelings from the raw edge of the material being sewed, and means for moving the device for turning down the ravelings with said top fabric engaging device.

10.- A sewing machine including in combination, stitch forming mechanism, a main feeding mechanism including fabric engaging devices ,*a crimping ridge located intermediate the .fabric engaging device, a top feeding mechanism including a fabric'engaging device bearing upon 'the crimping ridge, means for operating the main and top feeding mechanisms, :1 device in front of the top fabric engaging device for turning and holding down the ravclings from the raw edge of the materizil being sewed, and means"for-moving the device for turning sewing machine includii'zg in combi including a fabric engaging device down the ravelings with said top fabric engaging device, said .device for turning down the ravelings haying a cut away portion at its outer end to leave the threads of the.

from the rear toward the front of the machine, and having a fabric engaging device attached thereto, and extending in proximity to the needle, a rocking frame on which said plate is supported, said rocking frame comprising upper and lower shafts, brackets on the machine frame in which said lower shaft is journaled, arms supported at the lower ends on said lower shaft in which the upper shaft is supported, an adjustable means connected to one of said arms for imparting forward and backward movements to said plate, and means connected to said upper shaft for imparting vertical movements to saidplate.

12. A blind stitch sewing machine, including in combination, a needle reciprocating back and forth across the line of feed, a looper cooperating therewith, a top feeding mechanism comprising a plate extending from the rear toward the front of the machine, a fabric engaging device attached to said plate and extending in. proximity to the needle, a rocking frame on which said plate is supported, said rocking frame comprising upper a'nd lower shafts, brackets on the machine frame in which said lower shaft is journaled, arms supported at the lower ends on said lower shaft, and supporting said upper shaft, an oscillating shaft, adjustable connections between one of said arms and the oscillating shaft for imparting forward and backward movements to the fabric engaging device, a second oscillating shaft, and connections between the said upper shaft and said second oscillating shaft for imparting vertical movements to the fabric engaging device, said connections including pivoted links 105, 106,211] arm 108, and the crank 73, both said arm and crank being sleeved on said second oscillating shaft.

13. A blind stitch sewing machine including in combination, a needle reciprocating back and forth across the line of feed, a looper cooperating therewith, a top feeding mechanism comprising 'a plate extending from the rear toward the front of the machine, a fabric engaging device attached to said plate and extending in proximity to the needle, a rocking frame on which said plate is supported. said'rocking frame comprising upper and lower shafts, bijackets on themachine frame in' which said lower shaft isqournaldd, arms supported at the lower ends on said lower shaft and supporting said upper shaft, an oscillating shaft, adjustable connections between one of said. arms and the oscillating shaft for imparting forward and backward movements to the fabric engaging device, a second oscillating shaft, and connections between the said upper shaft and said second oscillating. shaft for imparting vertical movements to the fabric engaging device, said connections including piv-' oted links 105, 106, an arm 108 and a crank 73, both said arm and crank bein sleeved on said second oscillating shaft, an a movable catch for releasing the arm 108, from engagement with the crank 73.

14. A blind stitch sewing machine including in combination, a work support, means.

carried thereby for crimping the material, stitch forming mechanism including a needle and means for reciprocating it transversely of the crimping means to cause it to enter and emerge on the same face of. the

fabric, and a feeding mechanism including two feed members, means for operatmg the same, and means for ad]ust1ng the move ments of one of said feed members inde-- pendently of the other, whereby a differential movement may be imparted to said two feed members. i

15. A blind stitch sewing machine including in combination, a work support, means carried thereby for crimping the material, stitch forming mechanism including a needle with means for reciprocating it transversely of the crimping means to cause it to enter and emerge on the same face of the fabric, and a feeding mechanism including two feed members, means for operating the same, and means for adjusting the movements of one of said feed members inde pendently. of the other, whereby a differential movement may be imparted to said two feed members, one of said members being located below the work support and operating upon the under SHIfZlCQOf the fabric, and the other of said feed members 'being located above thework support, and operating upon the upper surface of the work.

16. A blind stitch sewing machine including in combination a work support, means carried thereby for crimping the material, stitch forming mechanism including a needle with means for reciprocating it transversely of the crimping means to causejit to enter and emerge on the same face of the fabric, and a feeding mechanism including two feed members, means for operating the same, and means for adjusting the' movements of one of said feed members independently of the other, whereby adifl'erential movement may be imparted to said two feed members, one of said members being located below the work support and having two spaced feed eng ging dei ices and said other feed member being located above the vcork support and engaging the fabric between the said lower feed devices.

17. A blind stitch sewinginnchine, includ ing in combination a work supporting memher, a needle reciprocating from side to side of the line of seam above said WOIk supporting member, means for operating said needie, and means in advance of the needle for tui'ning and holding down the revelings on the edge of the material being sewed.

18. A blind stitch sewing machine including in combination, a Work support, a crimping ridge carried thereby, a needle, means dog having a centrally projecting tapering .tongue on the forward end thereof adapted to intersect a vertical plane containing the path of movement of said needle.

In testimony whereof uflix my signature in presence of two Witnesses.

LANSING ONDERDONK NVitn'esses MAX COHEN, MAY COHEN. 

